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Air duct tightness test method

A test method and tightness technology, applied in the application of light to test fluid tightness, piping systems, mechanical equipment, etc., can solve problems such as rust marks on air ducts, and achieve accurate and reliable testing results

Active Publication Date: 2015-09-09
CHINA MCC5 GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For air ducts in a clean environment, a high degree of sealing is required to prevent external dust from entering the clean environment from the leaking location. Traditional air duct tests generally use water pressure testing, and this test method will cause rust marks on the air ducts. Therefore, this This method is generally used for plastic pipeline testing

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 , 2 shown.

[0039] The air duct tightness testing method includes a light leakage detection method; the light leakage detection method includes the following steps:

[0040] Step 1. The step of building the light source: use the light bulb 2, the lampshade 1, and the wire 3 to build the light source, wrap the lampshade around the light bulb, and connect the wire to the light bulb;

[0041] Step 2. The step of establishing the light source in the air duct: place the light source established in step 1 in the air duct 4;

[0042] Step 3. Detection step: In a dark environment, drag the wire 3 so that the bulb 2 and the lampshade 1 move along the path of the air duct under the action of the wire 3, and observe whether there is light coming out of the air duct where the light source passes. If there is light coming out, it means that the air duct is leaking, if there is no light coming out, it means that the air duct is not leaking.

[0043]The dark envi...

Embodiment 2

[0045] Such as figure 1 , 2 shown.

[0046] The present embodiment also includes an air leakage detection method on the basis of Embodiment 1, and the air leakage detection method includes the following steps:

[0047] Step A, air duct sealing step: remove the branch pipe connected to the air duct, seal the opening of the removed branch pipe, seal the remaining ports of the air duct and maintain an air supply opening;

[0048] Step B, the installation step of the air supply device: take the centrifugal fan 5 and install it at the air supply opening of the air duct through the orifice plate 9;

[0049] Step C, the installation step of the detection tool: install the air flow differential pressure gauge 8 at the orifice plate 9, and install a pipe static pressure differential pressure gauge 11 in at least one position in the air duct;

[0050] Step D, detection step: start the centrifugal fan 5 to supply air to the inside of the air duct, so that the a...

Embodiment 3

[0058] Such as figure 1 , 2 shown.

[0059] This embodiment is on the basis of embodiment 1 or embodiment 2, because when the air leakage detection method shows that there is still a leak, because the air is colorless and odorless, the position of the leak cannot be intuitively shown. Use your hands to feel the leak point. Due to the large area of ​​the air duct, there are many positions that need to be felt, so the leak point cannot be detected well. Therefore, in order to detect the leak hole conveniently and intuitively, it also includes smoke detection Leak detection method, smoke detection leak detection method comprises the steps:

[0060] Step a, air duct sealing step: remove the branch pipe connected to the air duct, seal the opening of the removed branch pipe, seal the remaining ports of the air duct and maintain an air supply opening;

[0061] Step b, the installation step of the air supply device: take the centrifugal fan 5 and install it at the air supply ...

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Abstract

The invention discloses an air pipe tightness test method, a light leak test system using the air pipe tightness test method, and an air pressure test system using the air pipe tightness test method. The air pipe tightness test method includes a light leak detection method, an air leak detection method, and a smoke leak detection method. The air pipe tightness test method, the light leak test system and the air pressure test method have the advantages that testing is accurate and reliable and no adverse reaction is caused to an air pipe.

Description

technical field [0001] The invention relates to air duct tightness testing, that is, an air duct tightness testing method, a light leakage testing system and a wind pressure testing system. Background technique [0002] For air ducts in a clean environment, a high degree of sealing is required to prevent external dust from entering the clean environment from the leaking location. Traditional air duct tests generally use water pressure testing, and this test method will cause rust marks on the air ducts. Therefore, this This method is generally used for plastic pipeline testing. In order to solve the above problems, the present invention needs to design a device and method that can effectively detect the airtightness of the air duct, while ensuring that the air duct is not affected by the test. Contents of the invention [0003] The object of the present invention is to provide an air duct tightness test method, a light leakage test system and a wind pressure test system t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/38F17D5/02
Inventor 杨汉林陈艳
Owner CHINA MCC5 GROUP CORP
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